TL:DR; PDFLock - A developer dll for setting all security options, main- and user-password, encryption type .
PDFLock - A developer dll for setting all security options, main- and user-password, encryption type ... Royalty free! Easy to use! For all well known IDEs (.NET, too!).
The ActiveX library allows integrating CAD features in such environments as .NET, HTML / JavaScript, VC++, Delphi, C++Builder, etc. It supports a large number of formats including AutoCAD DWG/DXF, HPGL, IGS, STP, STL, PDF, SVG, CGM.
SkICMP ActiveX Control is a lightweight and powerful ICMP (Ping and Traceroute) ActiveX control that can be used for network diagnosing, troubleshooting, and monitoring.It can be used from any 32-bit Windows development environment.
Free Barcode Software Component allows you to easily add Code39 , I2OF5 and ITF14 barcodes to Windows documents like Word or Excel. It exposes a full range of barcode properties and allows precise control over barcode dimensions.